To build your own nifty “Giant MP3 LED Display”, you’ll need lots of 128×64 two-colored LEDs, approx. 80×40cm panel, 110A/5V = 550W power input, an Ethernet interface, and a 16-MHz ATmega128 processor. Full instructions here. Few more images after the jump.
Again such a crazy project of me. It began with the fact that I bought a mountain of LED modules off eBay. And from this this enormous pile of LEDs became a panel